Section insulator



Aug. 19, i930. s. s, MATTHEs SECTION INSULATOR Filed Oct. l5, 1928 u w n f m A In v en lor Patented Aug. 19, 1930 UNITED STATES PATENT oFI-ICE SAMUEL S. MATTHES, MANSFIELD, OHIO, ASSIGNOR TO THE OHIO BRASS COMPANY,

OE MANSFIELD, OHIO, A. CORPORATION OF EW JERSEY SECTION INsULAToR Applicationy filed October 15, 1928. Serial No. 312,436.

Myinvention relates to section insulators an-d particularly to insulators for use in connection with trolley conductors.

The principal object of my invention is to provide a device of the character described in which the wearing ortions can be removed'and replaced easily, quickly and economically when desired and without the necessity of any changes ordisturbances of the trolley conductor.

Other objects will be noted as I further describe my invention.

My invention resides in the new and novel construction, combination and relation of the various parts i hereinafter .described and shown in the drawing accompanying this specification.

In the drawing Fig. 1 is a side View of my invention showing trolley wires attached thereto.

Fig. 2 is a top view of Fig. 1.

Fig. 3 is a section on the line 3-3 of Fig. 2.

Figs. 4, 5 and 6 are sections onA the lines 4, 5 and 6 respectively of Fig. 1.

In the preferred embodiment of my invention I employ an insulating bar 1 preferably of wood and provided with a threaded clevis shaped member 2 secured to the member-1 by means of the through bolt 3 and which is used to secure the device to an overhead support when desired. n

To each end of the insulating member 1 is a clevis shaped end member 4 secured to the body member 1 by means of the through bolts `5. Each end member is provided with a diagonallyjpositioned passage 6 inwhich is positioned the adjacent' ends of the trolley Wire 7. The trolley wireis held in position by means of the two set screws 8 threadablyy securedl to the end member 4 and which may be supplied with coneor cup-shaped points for engagement with the trolley wire. .The outer end of the member 4 is provided with a transverse passage to receive a through bolt 9. The inner end of the member 4 is provided with a projecting lip or ear 10, which conthe longitudinal tension placed upon the trol` w ley wire 7.

To the outer end of the end member 4 i detachably secured a wear-member 12 which is of a U-shaped formation as shown in Fig. 5 and is provided with a pair of spaced lips 13 with registering passages'therein to register with the passage through the outer end of the member 4 and toreceive therein the bolt 9 which secures the -members4 and 12 together approximately midway the member 12. The member 12 is also provided with upwardly and inwardly extending and spacedhook shaped members 14.v

The underface ofthe wood'member 1 is provided with a groove 15 in which is positioned an insulating member 16 which may be ofvwood or other insulating material and which extends between the ends of the spaced members 12 and forms withvthe removable member 12 a smooth 4and straight under-runy for a passage of the current'collectorfrom one trolley wire to the other. The members 12 and 16 are subjected to considerable wear and burning due to the passage of the current collector across the insulator and therefore it `becomes desirable to renew ,and replace these members andI have so arranged.

In order toV properly maintain the inner ends of the lmembers 12 inl position and the ends of the member 16, I employ a U-'shaped member 17 provided with lugs 18, which are in. turn ,providedY with registering openings to receive the through .bolt 19,' which holds` the member17 in position and also consists in hol-ding the end member 4 upon-the insu; latngmemberl.Y The holding member '17' is provided with a lower wear surface 20 which interlocks with the ends of the members 12 and 16 and forms a smooth underrun therewith. The ends of the members 12 and 16 are notched to receive the lower portion 20 of the member 17. As the portion 20 of the member 17 is subject to wear, it is possible that it may wear down suiiciently so that the portion which interlocks with the member 16 may be entirely worn awa in which case the member 16 would drop, t erefore I provide an extra portion 21 which will still remain in position after the portion 20 has been worn away and will engage with thebevelled end of the member 16 and hold the' member 16 in positionfor a further len h of time.

e ends of the member 16 are reduced in crossdsection as shown at 22 to interlock with recesses in the member 17.

The outer ends of the members 12 are furnished" with a pro'ecting member 23 which hasadepending 'p` portion 24 forming a rfo've therein to receive the trolley conotor'' and which is arranged to be bent around the trolley wire adjacent the end of the` member 12, thereby producing a gradual and easy approach of the trolley wheel from the vwire to the member 12. The member 23 ispovided with transversely projecting and headed members 25 which interlock with the hook shaped members 11i and which are secured into position by irs'tengaging the hook sha Lportion 14 while the member 23 is ina substantially vertical position and the member 23 is then rotated `down into position aspshown, and as 4it is provided at its rear end with a cam-shaped portion 26 which engages withthe trolley wire, the trolley wire will `lhced vdown linto osition in contact with the'inner surface of the member 12 and held infthaltposition, andthe lips 24-which under- `lapthe ,trolley Wire 7 hold the member 23 against 'rotating backwardl'y and releasing the trolley wire. j

v the description given it will be apparent that the members 12, 16, 17 and 23 lljafxtsily removable and releasable at will without serlously disturbing thevtrolley wire, its connection to thesection insulator or without disturbing the section insulator roper com` sing the insulating bar 1 and t e end mem r 4.,

l."lating theA device, the trolley wire isrstpositioned Vin the` passage 6 and held thereinb means' of the :setscrews 8. `The 2v isV then placed in position and securtlireby 'the bolt 9. The insulating bar ma' thenlie placed '1i position between the y, fnth'e members xfand within the groove when s0 1323i lilfd, the holding yoke di; 17"is positinedand secured in the bo1t19. end approach mem- Zgnay then be` positioned y interlockin'git-vrth are esta regg i4 while it is in a vertical position and then rotating the member to a horizontal position as shown in Fig. 3, and the lips 24 thereof bent around the trolley wire 7.

Having described my invention, I claim l. A section insulator comprising an insulating bar, end members each provided with means to receive a trolley wire and having means to hold the trolley wire in place, means to hold the end members to the insulating bar, each end member having a renewable end wear-member detachably secured thereto, a renewable insulating wear member positioned below the insulating bar and extending between the ends of the first said renewable wear members, means detachably secured to the device to hold the adjacent ends of the insulating member and renewable end wearmembers in position and other detachable wear-members secured to the outer ends of the renewable end wear-members to clamp the trolley wire between the renewable end Wear-members and the detachablewear-member.

2. A section insulator comprising an insulating bar, end members each provided with means to receive a trolley wire and having means to hold the trolley Wire in place, means to hold the end members to the insulating bar. each end member having a renewable end wear-member detachably secured thereto, a renewable insulating wear-member positioned below the insulating bar and extending between the ends of the first said renewable wear-members means detachably secured to the device to hold the adjacent ends of the insulating member and renewable end wear-members in position.4

3. A section insulator comprisingan insulating bar, end members secured to the bar and each provided with means to receive a trolley wireand means to hold the wire in place, each end member provided with a renewable wear-member, means to detachably secure the same in place and a renewable insulating member positioned between the ends of the renewable wear-members and support-` ing means securing the adjacent ends of the said renewable parts in alinement, the end wear-member being removable and replaceable without disturbing the said supporting rhneans at its end adjacent the insulating mem- 4. A section insulator comprising an insulating bar, end members secured to the bar and each provided with means to receive a trolley Wire and means to hold the wire in place, each end member provided with a renewable Wear-member, means to detachably secure the same in place, a renewable insulating member positioned between the ends of the renewable wear-members,- means secu-ring the vsaid renewable parts in alinement and renewable members projecting from the outer end of each renewable wear-member to engage the trolley wire and detachably secured to the renewable wear-member.

5. A section insulator comprising an insulating bar, end members secured to the bar and each provided with means to receive a trolley wire and means to hold the wire in place, each end memberprovided with a renewable wear-member, means to detachably secure the same in place, a renewable insulating member positioned between the inner ends of the renewable wear-members and means securing the said renewable parts in alinement and means pivotally secured to a part of the wear members to engage and hold the trolley wire.

G. An end attachment for a trolley wire support comprising a body member and a renewable member detachably secured to the body member; the body member comprising spaced members to receive a supporting member, means to receive a trolley wire, adjustable means to hold the wire in place and the spaced members provided with means to secure the body member to the support; the renewable member comprising an elongated U-shaped member to receive the trolley wire, means to detachably secure the renewable member to the under side of the body member, a detachable and rotatable member interlocked with one of the members of the end attachment to secure the trolley wire in place relative to the renewable member and having projecting means to extend along the trolley wire beyond the renewable member and having a groove in which the wire is positioned and formed of bendable lips, and auxiliary holding means at one end of the renewable member to hold the renewable member in position relative to the body member.

7. An end attachment for a trolley wire support comprising a body member and a renewable member detachably secured to the body member; the body member comprising spaced parts to receive a supporting member, means to receive a trolley wire, adjustable means to hold the wire in place and the spaced parts provided with means to secure the body member to the support; the renewable member comprising an elongated part to receive the trolley wire, means to detachably secure the renewable member to the body member, auxiliary holding means at one end of the renewable member to hold the renewable member in position relative to the body membei1 and means pivotally mounted on the renewable member to engage the trolley wire and force it into engagement with the renewable member when rotated and hold the trolley wire against displacement.

8. A renewable wear-member for a trolley wire support comprising an elongated member having a surface for contact with a mov-A ing current collector and a wire receiving channel open along its upper edge, means to secure the wear-member 1n position on the underside of a'support androtatable means at one end to force the trolley wire into position with .the wear-member and to hold the trolley wire in a fixed position relative to the wear-member and means at .the other end to beengaged by auxiliary'means to secure the wear-member to fa support'. f

`9. A renewable wear-member for a trolley wire supportcomprising an elongated member having a surface for contact with a moving current r'collector and a wire receiving channel open along its upper edge, means to secure the wear-member in position von the underside of a support androtatable means havinga cam portion to engage'the trolley wire to force it into position and mounted at one end of the wear-member to hold the trolley wire in a fixed position relative to the wear-member.

10. A renewable wear-member for a trolley wire comprising an open top member to receive a'trolley wire secured to a supporting member, means to detachably secure the wearmember to the support, open-end undercut spaced lugs mounted at the end of the wearmember to receive a detachable wear-member.

11. A section insulator having a substantially smooth under-run comprising an insulating bar, end members fixed thereto and each provided with means to receive a trolley wire and having means to secure the wire in fixed relation to the end members, a renewable member for attachment to and detachment from the end members without disturbing the fixed relation of the aforesaid parts, means to detachably secure each wear-member to its end member and supporting means for the end of the wear-member, an insulating bridge member extending between the ends of the wear-members and supported by the supporting means, the bridge member and supporting means and wear-members providing a substantiallyrsmooth and uninterrupted path for a moving current connector and means on the supporting means engaging the end of the bridging member to hold the bridging member in place after the lower wear portion of the supporting means has been worn out.

12. Asection insulator comprising an insulating bar, end members xed thereto and each provided with means to receive a trolley wire and means to secure the wire in fixed relation to the end members, a renewable wear-member for each end member, a renewable bridge between the-end member, a pivotally mounted renewable member secured to each wear-member, the wear-members, pivotally mounted members and bridge member arranged to be attached or detached without Vdisturbing the trolley wire with respect to the end members and the insulating bar.

13. A section insulator for trolley wires, comprising an insulating bar, an auxiliary inbridging member Aextending lengthwise o rthe fbsr, supporting members :for the bri g member to sature-its'ends to the bar and its to detachabiy secure the supportingmembers te 'the bar, end members sectre t0 the ends of the bar, a detachable wear-member secured to each end 'member in nlinement with the bridgin member and receiving the trollo wire un an end approach member rotatab y interlocked with 'each wear-member to lengagethe trolley wire and press the wire into position and so hold it rentve to the weanmember.

In testimony whereof I ax my signature.

SAMUEL S. lMATTI-IES. 

